Temporary binder.



G, D. TRUSSELL.

TEMPORARY BINDER.

APPLIGATION FILED JAN.20,19OB.

Patented May 24:, 1910.

amma,

. readily o ened for the withdrawal or ino sheet-holding prong. Fi

. view of the spring plate and'binding p UNITED STATES PATENT OFFICE.

CLARENCE DTRUSSELL, on NEW YORK, N: Y.,

ING COMPANY, 01 N W YORK, N. Y.,

a CORPORATION OF EW YORK.

TEMPORARY BINDER.

To all whom it men concern; s Be it known that I, CLARENCE D. TR IIS-" SELL, a citizen of the United States, resid ng in the borough of Manhattan, New York city, int-he county of New York and State of New -York, have invented certain'new and useful Improvements in Temporary Binders, of which the following is a specification.

- y invention relates to temporary binders for blank books,'account and memorandum books, and the like, in which theleaves be inserted or removed at will.

The object of my vinventionis to 'provide a temporary binder of inexpensive, simple and strong, construction which may be may sertion 0 leaves. and readily closed for. the

retention of the leaves. a

Figure 1 of the drawings is a perspective binder, the covers own. Fig. the line 22 of Fig. 1. Fig. 3 a view similar to Fig; 2, the sheet-holding prongs being shown in open position. F g. 4 is aide ail side View of a L 5 is a detail plan ate. Fig. 6 is a bottom VIGW of. the same. Fig. 7 is a detail side view illustrating a modified method of securing a sheet holding prong to its carrying plat turned, longitudinal edges" engaged by and fitted Referring to the drawings, -1 represents the covers ofmy temporary binder having the back 2. I Ly ng inside the back-2 is the curved spring plate-3 provided with the in or flanges 4 adapted to engage-the outer edges of the right and left metallic 5,, provided with note es 6 adapted to be Withinnotches 7jin the sheet-holding prongs 8. In the outer edges of the prong-carrying plates 5 adjaeent to the two; holding prongs, adapted to receive stop-pieces 10. At

are notches. 9 (Fig. l) the outer ends of metallic each end of spring-plate --3 are notches 11 adapted to be engaged byears 12 at the ends of the binding "plate 13. The double binding strip 14 is held firmly between the binding plate '13 and springlate 3, as best illustrated in Figs. 2 and 3. erethe double binding strip 14 extends into the covers, its two layers 15 and 16 -prong-carrying plates 5.

allow the upward movem rong-carrying plates ob ectionable for outer pairs of sheet- Specification ofLetters Patent. Patented May 24 1910, Application filed-January 20, 1908. SeriaLNo. 411,655.

part to receive the stiffening board 17 of the covers, upon each of which is secured, preferably by paste, the inner finishing layer 18.

-Fig. 7 illustrates a modified method of securlng the sheet-holding prongs 8 to the The prongs 8 in the modification have two opposite side notches or slits 19 and into these fit the sides of the notches 6 in the prong-carrying plates 5.

The sheet-holding prongs are adapted to engage holes punched in the removable leaves (not shown) of the binder and retain them bound when the sheet-holding prongs .are in the position illustrated in Fig. 1 and Fi 2. The lower joint between the sheetho ling prongs is then below the line of engagement between the spring-plate 3 and the prong-carrying platesf) so that there'- siliency of spring-plate 3 retains the prongs in closed position. When, however, one set. of prongs is pulled into open position illus= trated in Fig. the joint between the prongs ASSIGNOR TO TRUSSELL MAN UFACTURr- I rises, as illustrated, to a point above the line of meeting between the prong-carrying plates '5 and spring-plate 3 so that in'this position the resiliency of spring-plate 3 olds the prongs open. The stop-pleces 10 are slightly curved, as indicated, so as to ent of prong-carrying plates 5 but, to stop efi'ectively said upward movement, as illustrated 1n Fig. 3. The notch engagement between the rongs 8 and. the prong-carrying plates 5 old the same together with great rigidity in sub-.

stantially integral engagement so that the o enin or closin of one air of ron sis ears 12, as best illustrated. in Fi s. 1, 5 and 6. The employment of the double 14, whlch on each side extends into the inding strip covers, gives additional strength and liability to the binding,

inasmuch as t e two communicated transversely across the binder formed accurately and if they were integral;

layers and 16 of said binding stri sep;

arate to recelvebetween them the sti ening board 17. The modified form of engagement u between the prongs and prong carrying I 7, also secures the;

as efiectivelyas I In either structure the notches of the prongs and the notches of the carrying-plates should -be very close and tight.

What I claim as new and desire to secure by Letters Patent is:

' 1. In a temporary binder, a spring plate,

oppositely arranged prong-carrying plates engaging said spring-plate but not engaging each other, mating prongs rigidly mounted, by notched engagement on the prong-carrying plates havlng, when closed, their joints below the tween the prong-arry-ing plates and the spring-plate and, when open, having their join-ts above saidlines, and a stop device to limitathe opening movement" by contact -with the prong-carrying:plates.

2. In a temporary binder, a main plate extending lengthwise of the binder, a pair of covers each comprised of a plurality of layers, a double binding strip adiacent to the main plate having extensions which are secured on each side of one of the layers in each cover, and means to secure said binding strip in position upon the main plate.

3. In a temporary binder, a spring plate, oppositely arranged prong-carrying plates engaged by said, spring-plate, mating prongs, and a sto device seated above the prong-carrying p ates and held'from sidewise movement by notches in said prong carrying plates.

v 4:. In a temporary binder, a spring plate,

their carrying plates can be lines oi" contact be-- .ing with the notches 1n the mating prongs so of the prongs prong-carrying plates engaged by said spring-plate, butnot engaging each'other,

mating prongs upon the rong-carrying plates having their joints be ow the level of said plates, and a narrowstop device seated above the prong-carryin engagement therewith ment.

5. In a temporary prong-carrying plates, mating prongs, an a narrow metallic strip engaging notches in the prong-carrying plates so as to have no sidewise movement and so as to limit' th'e opening of the prongs.

6. In a temporary binder, a spring-plate,

plates and held by .a stifieningboard in each cover, and a .double binding strip held between then spring-plate and thebinding-plate, havin extensions which are secured on each side 0 saw: stiffening board.

'3. In a tern orarv binder Inatin ron P .2 a g P gs having oppositely arranged notches near prong-carry ng plates hav-' their goints, and

notches adapted to be tightly engaged that said prongs and said plates will move as if made in one piece. I

binder, matingprongs, o1nt an,

' 8. In a temporary each-prong having nearthe prong outwardly extending notch to fittigbtl y the thickness of its carrying-plate, and prongcarrying plates havin inwardl extending notches to fit tightly t e size 0 the prongs and effect a ti "ht engagement between said prongs and sai oarryin lates so that they will move together as i integral.

Signed at New York-city in the cou n'ty of New York and-State of. New York this 6th day of January A. D. 1968.

CLARENCE D. TRUSS ELL.

Witnesses i Gnomes X. HILKnnsoN, "Mn-min KAUFFMAN.

binder, a spring plate rom sidewise movea binding plate engaging said spring-plate, I 

